/Engine/Source/Editor/CurveEditor/Public/ICurveEditorDragOperation.h
Paint this drag operation onto the specified layer
void Paint ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & AllottedGeometry, [FSlateWindowElementList](API\Runtime\SlateCore\Rendering\FSlateWindowElementList) & OutDrawElements, int32 PaintOnLayerId )